ES8404583A1 - PLL Oscillator synchronizing system with matrix for phase correction - Google Patents

PLL Oscillator synchronizing system with matrix for phase correction

Info

Publication number
ES8404583A1
ES8404583A1 ES522571A ES522571A ES8404583A1 ES 8404583 A1 ES8404583 A1 ES 8404583A1 ES 522571 A ES522571 A ES 522571A ES 522571 A ES522571 A ES 522571A ES 8404583 A1 ES8404583 A1 ES 8404583A1
Authority
ES
Spain
Prior art keywords
output
inverting amplifier
signals
phase
amplifier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES522571A
Other languages
Spanish (es)
Other versions
ES522571A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RCA Corp filed Critical RCA Corp
Publication of ES8404583A1 publication Critical patent/ES8404583A1/en
Publication of ES522571A0 publication Critical patent/ES522571A0/en
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/44—Colour synchronisation
    • H04N9/45—Generation or recovery of colour sub-carriers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Processing Of Color Television Signals (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Networks Using Active Elements (AREA)

Abstract

Color reference oscillator in a color television receiver comprises a non-inverting amplifier, with positive feedback from its output conveyed via a crystal filter to its input. A quadrature phase shift network, coupled to the filter output, develops phase shifted signals which are matrixed with signals derived directly from the non-inverting amplifier to form resultant signals with a phase intermediate the phases of the matrix inputs. Control voltage outputs of a phase comparator, responsive to oscillator signals and to received synchronizing bursts, determine the magnitude and polarity of the output of a controlled amplifier which has at its input the resultant signals produced by said matrixing. The controlled amplifier output, and the output of an inverting amplifier also responsive to said resultant signals, share the load resistor of the non-inverting amplifier. Matrixing parameters and magnitude of inverting amplifier output are selected to eliminate adverse effects of undesired phase lag associated with the load circuit of the non-inverting amplifier.
ES522571A 1982-05-28 1983-05-20 IMPROVEMENTS INTRODUCED IN A ELECTRIC VOLTAGE CONTROLLED OSCILLATOR. Granted ES522571A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/383,263 US4485353A (en) 1982-05-28 1982-05-28 PLL Oscillator synchronizing system with matrix for phase correction

Publications (2)

Publication Number Publication Date
ES8404583A1 true ES8404583A1 (en) 1984-04-16
ES522571A0 ES522571A0 (en) 1984-04-16

Family

ID=23512370

Family Applications (1)

Application Number Title Priority Date Filing Date
ES522571A Granted ES522571A0 (en) 1982-05-28 1983-05-20 IMPROVEMENTS INTRODUCED IN A ELECTRIC VOLTAGE CONTROLLED OSCILLATOR.

Country Status (14)

Country Link
US (1) US4485353A (en)
JP (1) JPS58222602A (en)
KR (1) KR910001645B1 (en)
AT (1) AT393424B (en)
AU (1) AU563940B2 (en)
CA (1) CA1196068A (en)
DE (1) DE3319364C2 (en)
ES (1) ES522571A0 (en)
FI (1) FI79005C (en)
FR (1) FR2527861B1 (en)
GB (1) GB2120883B (en)
HK (1) HK48887A (en)
IT (1) IT1170142B (en)
MY (1) MY8700482A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485353A (en) * 1982-05-28 1984-11-27 Rca Corporation PLL Oscillator synchronizing system with matrix for phase correction
DE3448185C2 (en) * 1983-08-01 1988-03-24 Robinton Products, Inc., Sunnyvale, Calif., Us
JPS60248006A (en) * 1984-05-24 1985-12-07 Nec Corp Oscillator
US4611239A (en) * 1984-10-31 1986-09-09 Rca Corporation Oscillator synchronizing system for eliminating static phase errors
US4959618A (en) * 1989-02-16 1990-09-25 Vtc Incorporated Differential charge pump for a phase locked loop
JPH10283059A (en) * 1997-04-01 1998-10-23 Fujitsu Ltd Clock supply circuit and integrated circuit device using the same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763439A (en) * 1972-08-21 1973-10-02 Gen Electric Voltage controlled oscillator for integrated circuit fabrication
US4020500A (en) * 1975-11-19 1977-04-26 Rca Corporation Controlled oscillator
US4095255A (en) * 1977-04-07 1978-06-13 Rca Corporation Controlled oscillator with increased immunity to parasitic capacitance
US4230953A (en) * 1978-07-31 1980-10-28 National Semiconductor Corporation Non-linear control circuit
US4263608A (en) * 1979-01-09 1981-04-21 Rca Corporation Burst insertion apparatus for SECAM-PAL transcoder
US4286235A (en) * 1979-06-25 1981-08-25 Rca Corporation VFO having plural feedback loops
US4249199A (en) * 1979-10-09 1981-02-03 Rca Corporation Phase compensated controlled oscillator
US4485353A (en) * 1982-05-28 1984-11-27 Rca Corporation PLL Oscillator synchronizing system with matrix for phase correction

Also Published As

Publication number Publication date
MY8700482A (en) 1987-12-31
JPS6325525B2 (en) 1988-05-25
FR2527861A1 (en) 1983-12-02
HK48887A (en) 1987-07-03
DE3319364A1 (en) 1983-12-01
KR910001645B1 (en) 1991-03-16
ATA197083A (en) 1991-03-15
GB2120883A (en) 1983-12-07
FI831788L (en) 1983-11-29
AU563940B2 (en) 1987-07-30
GB2120883B (en) 1985-11-06
FI831788A0 (en) 1983-05-20
US4485353A (en) 1984-11-27
FI79005B (en) 1989-06-30
GB8314410D0 (en) 1983-06-29
FI79005C (en) 1989-10-10
IT1170142B (en) 1987-06-03
ES522571A0 (en) 1984-04-16
DE3319364C2 (en) 1987-04-30
FR2527861B1 (en) 1988-08-26
JPS58222602A (en) 1983-12-24
AU1483783A (en) 1983-12-01
CA1196068A (en) 1985-10-29
KR840004990A (en) 1984-10-31
IT8321218A0 (en) 1983-05-20
AT393424B (en) 1991-10-25

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20040211